By now, the Internets have gone crazy over the unveiling of Nike’s Back to the Future II MAG. As the finished product prepares for an eBay launch to the benefit of The Michael J. Fox Foundation for Parkinson’s Research, the recent presentation was accompanied by some awesome sketches that would be the precursor to the Nike MAG. Presented by Tinker Hatfield and Mark Parker, the slides show the development, brainstorming and story-boarding process as well as the official memo that led to the meeting between both the Nike and Back to the Future parties.